Map Catalog and Indexes
The Ansari Map Library collection contains approximately 140,000 maps, including topographic and earth science themes for the United States and the world.
At this time, only the most recently received U.S. federal maps and purchased maps may be found in the online catalog for UNR. These maps may be searched by topic (i.e., earthquake hazard), and then limited by material type (i.e., map), author, or collection (i.e., DeLaMare Library).
The majority of the map collection must be accessed in several other ways
including a map card catalog. Individual maps not within government series are
informally cataloged and found in the Map Catalog by author ((i.e.,
U.S. Forest Service)
and subject (i.e., Nevada - Geothermal). Maps of regional importance
within series may also be cataloged.
U.S. Geological Survey topographical map series are identified by using the
topo indexes for each state which are located on the map reference shelves.
Nevada and California topo indexes are found on top of or near the
map cases housing these 7.5' and 15' maps. These indexes indicate the filing
number used in this library. In addition, card files for the Nevada and
California topo 7.5' and 15' series identify each sheet by name and provide our
Map Library filing number. Other series have their own sheet indexes including
U.S.G.S. and B.L.M. 1:250,000 and 1:100,000 series. U.S. produced international
nautical and aeronautical series have sheet and book indexes. The U.S. Dept. of
Defense AMS/DMA/NIMA series have specialized index manuals and card file
indexes.. Online sources such as
WorldCat may also identify maps included in this collection.
There is no one place to identify all geologic maps in the library;
indexes vary by state and region. Those not in a series are cataloged (i.e.,
Canada- Geologic). One series of geologic indexes for each U.S. state is
located on the Map Reference shelves. Also consult the Guide to USGS
(Z6027 U5 G8, latest on Map Reference shelves) and various online bibliographic
sources such as GeoRef (available via Mathewson-IGT Knowledge Center web site).
Reference assistance is available between 8 - 5, Monday through Friday, except holidays.